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Fig. 3D. —Technique and expected results for radiofrequency ablations of renal cell carcinoma in 73-year-old woman. Contrast-enhanced CT scan obtained 1 year after radiofrequency ablation shows no evidence of residual or recurrent tumor. Some atrophy has occurred, and sharp line of demarcation (arrow) is present between normal kidney and area of ablation. No enhancement in area of treatment is apparent, indicating complete tumor eradication.